Box making machine



March 7, 1933. J. w. LOW

BOX MAKING MACHINE 2 Shets-Sheet 1 Filed Dec. 5, 1930 INVENTOR. W. L0 W.

N H 0 J March 7, 1933. .1. LOW

BOX MAKING MACHINE Filed Dec. 5, 1930 2 Sheets-Sheet ILIIIII I IIILI 4III.

INVENTOR. Jo H N w L ow Patented Mar. 7, 193?;

3' W. LOW, OF MILL VALLEY, CALIFORNIA 30X MAKING MACHINE Application asBec'e'miier s, 1930. Serial 1%. 499,713.

This invention relates to box making machines.

An object of the invention is to provide a box folding machine in whichadhesive is applied to predetermined port-ions of a 'box blank, andthen'the blank is fold-ed so that the said portions of the blank overliecomplemented portions of the box, means being provided to exert pressureon said portions when the adhesive is applied thereto, and means beingprovided also for exerting pressure on said portions after the-box blank{is folded.

Another object of the invention is the provision of a box foldingmachine, wherein a plurality of adhesive-spreading mechanisms areprovided to apply adhesive to portions of a box blank before the same isfolded, said mechanisms being adjustable relatively to each other on theframe for different size blanks and boxes; means being provided tooperate sai-d mechanisms simultaneously, and also to urge said portionsof the blank toward said spreaders.

Another object of the invention isLto provide a folding machine havingmembers-to form a female support forthe folding of'the blank, with whicha reciprocating male element cooperates to fold the blank into the shapeof a box, said femalem-einbers being adapted to support the blank inoperative relationto the-adhesive spreaders of-the machine, means beingprovided in relationito the female members to exert pressure on theadhesive coated portions of the blank after theblank is folded andwhilexit is. advanced between the female membe-rsby said reciprocatingplunger.

Another object ofLthe invent-ion isto provide a novel adjustablemechanism on a box folding machine to apply adhesivetopredeterminedportions of a boxblank onthe machine.

Other objects and advantages are to provide a box folding and makingmachine'th-at will be superior in point of simplicity, inexpensiven-essof construction, positiveness of operation, and'faeility and conveniencein use and general efficiency.

In this specification and the annex-ed drawings, the invention isillustrated in the form considered to be the best, but it is to be un--derstood that the invention is not limited to such form, because it maybe embodied in other forms; and it is also to be understood that in andby the claims following the description, it is desired to cover theinvention in whatsoever form it may be embodied,

The invention is clearly illustrated in the accompanying drawings,wherein,

Fig. 1 is a side view of the box folding machine. i

Fig. 2 is a plan view of the machine. Fig. 3 is a side view of anadhesive-spreader mechanism constructed in accordance with my inventlon.

Fig. 4 is an end view of the adhesive spreader mechanism.

Fig. 5 is a plan view of ablank from which the box is made.

In its general organization the folding machine herein describedincludes a frame 6,

a folding mechanism 7, and a plurality of.

adhesive-spreader mechanisms 8 associated with the said foldingmechanisms 7.

The top 9 of the frame 6 is supported on legs 11. Adjacent the oppositelongitudinal edges of the top 9are formed upwardly eX-. tended, inverteddovetail guide rails 12, on which in turn are supported transverseplatforms 13.

There are two such platforms 13. In the bottom side of each end of eachplatform 13 is formed a dovetail groove 14 slidably fit-' illllg overthe respective guide rails 12 to allow the adjustment of the platforms13 longitudinally of-the top- 9 of the frame 6. An upwardly extended,internally threaded vbearinglug 1 6 is provided on eachend of eachplatform 13. The lugs 16 on the align- .ingends of the platforms13 arein alignment .wlth each other and are oppositely threaded.

A threaded adjusting bar 17 extends above each guide rail 12. Each bar17 is oppositely threaded adjacent its opposite ends, and engaging thealigning lugs 16 to move the platforms 13 toward and away from eachother when the bar 17 is rotated. The parallel bars 17 are connected toeach other by a sprocket and chain connection 18 at an end of the frame6, so that rotation of one bar 17 simultaneously rotates the other bar17 to adjust both ends of the platforms 13 in synchronism, thusmaintaining the said platf rms 13 in parall lism with. each other at alltimes. To facilitate the rotation of the bars 17, a hand wheel 19 isprovided on the free end of each bar 17.

The platforms 13 are spaced from each other. On each platform aresupported two parallel adhesive spreader mechanisms 8. Each spreadermechanism 8 includes a frame or box 21 resting on the adjacent platform13. In the frame 21 is fixedly mounted a tank or container 22,containing the adhesive paste or glue, that is used in the making of theboxes out of cardboard or the like material. A shaft 23 is journaled inthe frame 21 and extends through the container 22. A spreader wheel 24within the container 2 is fixed on the shaft 23 to rotate therewith. ix

l l \.1 top of the container above the level of the adhesive to carrythe adhesive out of ti container when rotated.

At an end of the top 26 of frame 21 is formed a platform 27, below thelevel of the top surface 28. Thus, in effect the por tion of the top 26outside of the platform 27 is elevated above the level of the platform.A slot 29 is cut through the higher portion of the top 26. extendingfrom the shoulder 31 at the platform 27 to the outer end of the top 26.The slot 29 is comparatively wide and a groove 32 is cut in eachvertical side of the slot 29. The opposed grooves 32 are in horizontalalignment with each other to guide a reciprocating plate 33 insertedtherein. On the underside of the plate is secured a recessed retainerplate 34, in the recess 36 of which is fixed a spreader pad 37protruding beyond the under face of the plate 34. The pad 37 ispreferably made of rubber.

It is to be noted that the slot 29 is cut through the entire thicknessof the frame top 26. so that the plate 34 and he pad 37 move in an openpassage. and the pad 37 is in contact with the periphery of the spreaderwheel 24.

A box blank 38 h. one of its sides disposed on the surface of theplatform 27, latter being on the level of the l face of the pad 37. Thuswhen the plate lower is reciprocated, the pad 37 takes off adhesive fromthe periphery of the wheel 24 and then it travels over the portion ofthe blank 38 above the platform 27 and spreads the adhesive thereover.

In order to assure the flattening of the said portion of the box blank38. a wedge projection 39 is provided on one side edge of tne plate 33,extending beyond the end of said plate 33 and being mitered at 41 toengage the end of the blank 38 and urge the same into flat position onthe platform 27.

A bent arm 42 is secured to the top of the plate 33 and extendsdownwardly on one side of the frame 21. The end of the arm 42 has a pin43 therein extended toward the frame 21 and slidable in an elongatedslotin a crank arm 44. The end of the crank arm 44 is rotatable on theend of the shaft- 23 outside of the frame 21. On the crank arm 44 is apivoted pawl 46 engaging the teeth of a ratchet 47. which latter isfixedly secured to the shaft 23 between the crank arm 44 and theadjacent side of the frame 21..

Whenever the plate 33 is moved over the platform 27 the arm 42 is movedtherewith, rotating the crank arm 44, which latter r0- tates the shaft23 by reason of the pawl engagement with the ratchet 47. Thus, at thetime of the reciprocation of the plate 33. the shaft 23 is rotated. andthe wheel 24 rotating therewith carries the adhesive out of thecontainer 22 and onto the underside of the spreader pad 37. Before theuse of the spreader it is necessary to reciprocate the plate 33 a numberof times to cover the en tire periphery of the wheel 24 with adhesive,ready for the actual operation.

The portion of the blank 38 overlying the platform 27 is pressed againstthe pad 37 by means of a pressure plate 48 in the platform 27 of the top26. The pressure plate 48 is so disposed that its top surface isnormally flush with the top surface of the platform 27. From theunderside of the plate 48 extends a lug 49 in which is pivoted an end ofa lever 51. The other end of the lever 51 is fixed on a shaft 52journaled in the frame 21 in front and above the container 22 and belowthe plate 48. A crank lever 53 is secured to the shaft 52 and extendsbetween the container 22 and the side of the frame 21 adjacent theratchet 47. The free end 54 of the lever 53 is bent to extendsubstantially horizontally below the shaft 23. On the shaft 23 isrotatable a cam 56 in operative relation to the lever end 54. The cam 56is connected by a yoke 57 to the hub of the crank arm 44, so thatwhenever the latter is rotated by reason of the reciprocation of theplate 33, the cam 56 also rotates therewith on the shaft 23. Theeccentric portion 58 of the cam 57 is so adjusted that it reaches thelever end 54 at about the time when the pad 37 extends over the blankportion on the pressure plate 48. At this time the said lever end 54 ismoved downwardly by the eccentric cam portion 58, whereby the shaft 52is rocked and the outer end of the lever 51 is moved upwardly so as tourge the pressure plate 48 against the underside of the blank 38. Thusthe blank 38 is pressed against the adhesive spreader pad 37. When theplate 33 is returned to its original position the weight of the pressureplate 48 moves the lever 51 downwardly 4., lite and returns the shaft52, to its original position. The plate 48 then rests on the top of thelever 51., Normally the lever 51 is in substantially horizontalposition.

All the vadhesive spreader mechanisms 8 are constructed similarly to theafore-describedmechanisms 8. The opposed pairs of mechanisms 8' areadjusted longitudinally of the frames by adjusting the platforms 13toward each other in theaforedescribed manner. Each frame 21 has aprojection 59 extended from its bottom, slidably fitting in therespective transverse guide slots 61 in the platforms 13.Theseprojections 59 prevent the longitudinal movement of the frames 21relatively to the respective platforms 13, but allow transverseadjustment of the frames '21 toward each other on the same platform 13.An adjusting rod 62 extends through each pair of frames 21 on the sameplatform 13. The rod 62 is oppositely thread ed at its opposite ends andthreaded holes 63 in the adjacent frames 21 engaged by thesame rod 62are also threaded oppositely to each other so as to cause the adjustmentof the adjacent spreader mechanisms 8 toward and away from each other asthe rod 62 is rotated. If

necessary more than. one rod 62 can be provided above each platform. I

Eachpair of frames 21 ofthe adj acentmechanisms 8 is held in laterallyadjusted position by means, of a stay member 64 which has an axialgroove 66 in the face thereof to be engaged' by abolt 67 extended from afixed lug 68 on each frame 21. The lugs68 of the ad jacent frames 21extend. toward eachother and over the grooved face of the member 64, andare disposed adjacent the tops of. the re spectiveframes 21. When thenuts 69zof the bolts 67 are tightened against the respective lugs 68,the member. 64is=fixedly held in position preventing movement of theadjacent frames 21itoward or away fromeach other.

All the spreader mechanismsS are simultaneously operated. On the. outerendofeacli plate 33 is bolted a bearing. bracket v71. The brackets 71 onthe adjacent mechanisms 8 are in registery to allow the insertionof-ahandle bar72jtherethrough. Another-handle bar 7 3 issimilarly heldinthe brackets v71 of the other setof mechanisms 8. The ends of thehandle bars 72 and 73 are extendedbeyond thesidesof the frame 6.vOn'eachend of the bar 7 2 is pivoted'an endof a link .7 4, theother endof whichis pivotally secured inatrunnion 7 6 on the end of alever 77.Eachlever 77 is. pivoted intermediate itsends on a fixed pivot pin 78extended outwardly. from the adjacent t'ank22. The other end ofthe lever60 (7' has an elongated slot 79 thereinengaging the adjacent endofthehandle bar 73.

When the handle bar. 7 2 is moved to reciprocatethe respective plates33, then the links 74 turn the levers .7 7 around their pivots 78 andthe slottedendsofathe levers 77. reciprocatethe plates 33of the othermechanisms 8 in synchronism with the first mentioned plates 33. Thus allthe portions of the blank 38, that are coated with adhesive, receive theadhesii e at the same time and in one operation.

The frames 21 of the spreader mechanisms 8 also carry the female foldingelementsof the machine, so that the position of the mechanisms 8 and ofthe folding elements can be adjusted for different sizes of box blanks,and boxes, by the afore-described adjustment of the mechanisms 8. Thefemale folding elements of the folding mechanism 7 include side foldingelements 83, flap folding elements 84 and end folding elements 86.

v The side folding elements or side folders 83 extend at right anglestothe inner ends of the respective frames 21. Each side folder 83 has aflange 87 on the outer vertical edge thereof extending outwardly fromthefoldingmechanism 7 for attachment to the end of the frame 21. Thesidefolders 83 are only of sufficient length that each forms a corner, thefour corners being arranged in alignment to include a rectangular spacewithin which the blank is folded. It is to be noted that the staymembers 64 are countersunk into the respective inner ends of the frames21 so as to allow true alignment of the folder elements. The upper endof each side folder 83 is flared outwardly to facilitate the bending ofthe box blank-without tearingthe same, and to form a supporting rim 88said blank.

Each flap folding element or flap folder 84consists of a shortangle-iron section bolted on'the top of the frame adjacent the top ofthe flange 87 of the side folder 83. The upwardly extended lugs 89 ofthe flap folders 84 extend above the said corners formed bytherespective side folders 83, and are in registry with the outer endsof the respective rims 88,so-as to bend the flaps of the box blank forbefore the sides thereof are folded.

The end folder elements or end folders 86 are secured tothe innerendsofthe respective frames 21 adjacent the side folders 83 and consist ofthe inner faces of the stay member 64. l

The usual box blank 38 from which the box is formed is preferably madeas shown .in Fig. 5. From the bottom 91. extend the longitudinal sides92, and from each end of the bottom extends a transverse side or end 93.At each endof each longitudinal side 92 is. formed a-fi'ap 9.4, which iscut away at 96 to allow the bendingthereof at rightangles tothe adjacentside 92 so that the ends 93 can be folded over the respective flaps 94.In order to securely form a box it is necessary to apply adhesive onlyto portions of the ends 93 which will overlie the flaps 94, so as tocause the ends 93 to adhere to thefi-aps 94 and hold the box in shape.

It is to be noted that the flap folders 84 extend above the level of theside rims 88 and the inner sides of lugs 89 thereof are in alignmentwith the end folder faces 86. The top edges of the end folder faces 86are below the level of the side folder rims 88. The blank 38 is laidupon the said folders so that the flaps 94 thereof rest upon the flapfolder lugs 89 and are bent upwardly thereby. The ends 98 of the blank38 rest on th e platforms 27 and on the pressure plates 48. Then theadhesive spreader mechanisms 8 are actuated in the aforesaid manner andadhesive paste or glue is applied to portions of the ends 93 above theplatforms 27.

Then a male folding plunger 97 is lowered into the female die formed bythe said folders 83, 84 and 86. The plunger 97 is of such dimensions asto engage the box bottom 91 and advance the same into and through saidfemale die formed by the said folders. Due to the relative arrangementof the folders 83, 84, and 86, the flaps 94 are bent first, then thesides 92 are bent at right angles to the longitudinal edges or creasesof the bottom 91, and lastly the ends 93 are folded over the flaps 94,and adhere thereto.

In order to assure firm adhesion of the ends 93 to the flaps 94, aroller 98 is provided in the inner end of each frame 21. The rollers 98have stub shafts 99 extended from the ends thereof which latter areinserted into downwardly inclined bearing slots 101, to be journaledtherein. The rollers 98 are so arranged that the peripheries thereofproject slightly beyond the respective planes of the end folder faces86, substantially below the platforms 27, so that when the folded boxblank 38 is passed into the female die formed by said folders, therollers 98 exert pressure on the outside face of the box ends 93 atpoints opposite the flaps 94, to insure the adhesion of the same to eachother.

The plunger 97 is operated by a plunger actuating mechanism 102, whichincludes brackets 103 extended upwardly from the top 9 of the frame 6,and connected to each other at the tops thereof by a cross member 104.On the cross member 104 is supported a vertical rack guide 106 toslidably receive a rack 107. The male plunger 97 is supported on thelower end of the rack 107. A shaft 108 is journaled in bearings 109 onthe brackets 103 and has a gear 111 fixedly mounted thereon intermediatethe ends thereof. The gear 111 is in mesh with the teeth of the rack107. An end of the shaft 108 is extended beyond the adjacent bearing 109and has a pinion 112 fixed thereon. Around the pinion 112 is a swingingguide 113 fulcrumed on the end of the shaft 108, which slidably guidesanother rack 114 in mesh with the pinion 112. The rack 114 extendsdownwardly and has its lower end pivoted to a foot lever 116, the latterbeing pivoted at 117 to the frame 6. A counterweight 118 is suspended onthe frame 6 and has its line 119 connected to the foot lever 116 at apoint between the pivot 117 and the end of the rack 114. The free end ofthe foot lever 116 is extended beyond the end of the frame 6 tofacilitate the operation thereof by the operator of the machine.

In operation, normally the counterweight 118 urges the foot lever 116upwardly to move the rack 114 upwardly and to turn the pinion 112, theshaft 108, and the gear 111, so as to move the rack 107 and the plunger97 upwardly and to counterbalance and hold it in its uppermost position.After adhesive is applied to the box, the operator depresses the footlever 116 so as to move the rack 114 downwardly and to rotate the pinion112, the shaft 108, and the gear 111 in a clockwise direction, viewingFig. 1, thereby to lower the rack 107, and the plunger 97 into thefemale die formed by the said folders. After the box is folded the footlever 116 is released and the counter-weight 119 causes the raising ofthe plunger 97 in the afore-described manner.

It will be recognized that a particularly efiicient machine is providedfor the forming of box blanks into secure and firm boxes; the

machine is readily adjustable to any size of box, and the adjustment ofthe folder elements of the female die automatically determines theproper location of the adhesive spreader mechanisms, so that plied atall times to the proper portions of the blank; the adhesive spreadersare simultaneously actuated by the single manipulation of a handle bar;waste of adhesive is eliminated; the box is folded in shape by a footlever; the machine, after its initial adjus ment, does not require anyfurther setting, it is simple in operation, and readily lends itself toeffective application by labor ordinarily available.

Having thus described this invention, what I claim and desire to secureby Letters Patent 1s:

1. In a box making machine a frame, folder elements disposed on theframe to fold the flaps, the sides, and the ends of the blank and tosupport the blank thereon before folding; spreader members associatedwith the folders, being adapted to be extended over portions of theblank to apply an adhesive to the surfaces that overlie the flaps whenthe box is folded; an adhesive container in operative relation to eachmember; a rotary adhesive carrier in each container being operativelyconnected to the adhesive receiving face of the said members to berotated in synchronism with said member, and to trans fer adhesive fromthe container to said member; means to urge said blank into engagementwith the folder elements; and means to actuate said blank-urging means.

adhesive is apelements disposed on the and to support the 2. In a boxmaking machine a frame, folder elements disposed on the frame to foldthe flaps, the sides, and the ends of the blank and to support the blankthereon before folding; spreader members associated with the folders,being adapted to be extended over portions of the blank to apply anadhesive to the surfaces that overlie the flaps when the box is folded;an adhesive container in operative relation to each member; a rotaryadhesive carrier in each container being operatively connected to theadhesive receiving face of the said members to be rotated in synchronismwith said member and to transfer adhesive from the container to saidmember; a platform on the frame adjacent each portion of the blank towhich adhesive is applied, being adapted to press the respective blankportions against said member; and

means to press said platform against said blank portion.

3. In a box making machine a frame, folder frame to fold the flaps, thesides, and the ends of the blank,

blank thereon before folding; spreader members associated with thefolders being adapted to be extended over portions of the blank to applyan adhesive to the surfaces that overlie the flaps when the box isfolded; means to simultaneously actuate said members; an adhesivecontainer in operative relation to each member; a rotary adhesivecarrier in each container being operatively connected to the adhesivereceiving face of the said members to be rotated in synchronism withsaid member, and to transfer adhesive from the container-to said member;means to urge said blank into engagement with the folder elements; andmeans to actuate said blank-urging means.

4. In a box making machine a frame, folder elements disposed on theframe to fold the flaps, the sides, and the ends of the blank and tosupport the blank thereon before folding; spreader members associatedwith the folders, being adapted to be extended over portions of theblank to apply an adhesive to the surfaces that overlie the flaps whenthe box is folded; an adhesive container in operative relation to eachmember; a rotary adhesive carrier in each container being operativelyconnected to the adhesive receiving face of the said members to nismwith said member and to transfer adhesive from the container to saidmember; a platform on the frame adjacent each portion of the blank towhich adhesive is applied, being adapted to press the respective blankportions against said member; and means operated in synchronism withsaid spreader members to press the said platforms against the respectiveblank portions when the said members are extended over said blankportions.

5. As a sub-combination in a machine of hesive applying mechanisms on berotated in sy ch i.

adhesive onto said portion; meansadjacent the said blank portion to urgethe sameto ward said member; and meansof connection between the saidurging means and said rotary element to operate said urging means insyn'chronism with the reciprocating move .3

ment of said member.

6. As a sub=combination in a machine of the character described, acontainer having an adhesive material therein, an element rotatable inthe container, and being partially extended outside ofthe adhesivematerial, a reciprocable adhesive spreader dis JOSed in contact withsaidelement to take 0 the ad hesive therefrom; a support for a box blankin operative position relatively to the spreader, means of connectionbetween the adhesive spreader and the said element to rotate saidelement as the spreader is moved toward and over the blank to spread theadhesive on a surface of the blank; means'to press the said blankagainst said eratively connected'to said means of connection to actuatesaid pressing means when the spreader; and means op- I the blank.

a frame, adthe frame, a support for the box blank on each mechanismforming a folding element, each mechanism comprising a container supporton the frame,- a container for adhesive supported on the" support; ashaft extended through the'container and journaled in the support, arotary wheel on the shaft being partiallyimmersed in the adhesive, anadhesive spreader,

7. .In a boxmaking machine,

contacted with the wheel andadapted to be i moved over a surface of theblank o'n said blank support; and means of connection between the shaftand the spreader to rotate said shaft and wheel as the spreader is movedto said blank.

' 8; In a box making machine, a frame,ad-

hesive applying mechanisms on the frame, a

support for the box blank on each mechanism forming a folding element,each mechanism 7 comprising a container support on theframe,

a container for adhesive supported on the support; a shaft extendedthrough the container and journaled in the support, a rotary wheel onthe shaft being partially immersed in the adhesive, an adhesive spreadercontacted with the wheel and adapted to be moved over a surface of theblank on said blank support; means of connection between the shaft andthe spreader to rotate said.

shaft and wheel as the spreader is moved to said blank; :1 platform onthe frame adapted to engage the blank so as to press the said blankagainst said spreader, and means of connection between said shaft andsaid platform to operate said platform in synchronism with the movementof the spreader.

9. In a box making machine, a frame, adhesive applying mechanisms on theframe, a support for the box blank on each mechanism forming a foldingelement, each mechanism comprising a container support on the frame, acontainer for adhesive supported on the support, a shaft extendedthrough the container and journaled in the support, a rotary wheel onthe shaft being partially immersed in the adhesive, an adhesive spreadercontacted with the wheel and adapted to be moved over a surface of theblank on said blank support; means of connection between the shaft andthe spreader to rotate said shaft and Wheel as the spreader is moved tosaid blank; a platform on the frame adapted to engage the blank so as topress the said blank against said spreader; means of connection betweensaid shaft and said platform to operate said platform in synchronismwith the movement of the spreader; and means to adjustably hold eachcontainer support on the frame.

10. In a box making machine, a frame, adhesive applying mechanisms onthe frame, a support for the box blank on each mechanism forming afolding element, each mechanism comprising a container support on theframe, a container for adhesive supported on the support, a shaftextended through the container and journaled in the support, a rotaryWheel on the shaft being partially immersed in the adhesive, an adhesivespreader contacted with the wheel and adapted to be moved over a surfaceof the blank on said blank support; means of connection between theshaft and the spreader to rotate said shaft and wheel as the spreader ismoved to said blank; a platform on the frame adapted to engage the blankso as to press the said blank against said spreader; means of connectionbetween said shaft and said platform to operate said platform insynchronism with the movement of the spreader; and means to adjustablyhold each container support on the frame, said blank support beingadapted to hold and unfolded blank with flaps of the blank bent out ofthe plane of the blank, and being adapted to support the sides of theblank which overlie said flaps when the blank is folded, in operativerelation to the spreader.

11. In a box making machine, a frame, adhesive applying mechanisms onthe frame, a support for the box blank on each mechanism formin afolding element, each mechanism comprising a container support on theframe, a container for adhesive supported on the support; a shaftextended through the container and journaled in the support, a rotarywheel on the shaft being partially immersed in the adhesive, an adhesivespreader contacted with the wheel and adapted to be moved over a surfaceof the blank on said blank support; means of connection between theshaft and the spreader to rotate said shaft and wheel as the spreader ismoved to said blank; and means of connection between the adhesi eapplying mechanism to operate the same simultaneously.

12. In a box making machine, a frame, adhesive applying mechanisms onthe frame, a support for the box blank on each mechanism forming afolding element, each mechanism comprising a container support on theframe, a container for adhesive supported on the support; a shaftextended through the container and ournaled in the support, a rotaryWheel on the shaft being partially im mersed in the adhesive, anadhesive spreader contacted with the wheel and adapted to be moved overa surface of the blank on said blank support; means of connectionbetween the shaft and the spreader to rotate said shaft and wheel as thespreader is moved to said blank; means of connection between theadhesive applying mechanism to operate the same simultaneously; andmeans to adjust the position of said adhesive applying mechanisms on theframe.

13. In a box folding machine a frame, a plurality of adhesive-spreadingmechanisms on the frame, a sup 'iort on each mechanism for a box blank,being adapted to form a part of a female element of the folding machine,means to simultaneousny operate said spreading mechanism to applyadhesive to portions of the blank; and a reciprocating plunger on theframe adapted to be passed into the female folding element formed bysaid supports, thereby to fold the box blank.

14. In a box folding machine a frame, a plurality of adhesive-spreadingmechanisms on the frame, a support on each mechanism for a box blank,being adapted to form a part of a female element of the folding machine,means to simultaneously operate said spreading mechanism to applyadhesive to portions of the blank; a reciprocating plunger on the frameadapted to be pressed into the female folding element formed by saidsupports, whereby to fold the box blank; and means to adjust the saidmechanisms on the frame for boxes of various sizes.

In testimony whereof, I have hereunto set my hand at San Francisco,California, this 10th day of November, 1930.

JOHN V. LO'W.

